Your program is about to begin. But before you start streaming, you’ll need to log in.Or sign up, if you don’t already have an account. Your program is about to begin. Sign me up Or Log in Mavis! A documentary on gospel/soul music legend and civil rights icon Mavis Staples. At 75 she's making the most vital music of her career, and her message of love and equality is needed now more than ever. Expires on Apr 18 Genre: Arts, Biography, Music and Dance Anthology: Storyville Preview Air Dates Extras Mavis! Preview Mavis! Preview Watch a preview of Mavis!.